Re: ramdisk for initrd

Re: ramdisk for initrd

[Ralph Blach]

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Andreas

I think this is better for making a ramdisk.

dd if=/dev/zero of=./ramdisk.img bs=1k count=1000
/sbin/mke2fs -q -F -m 0 ./ramdisk.img
mkdir /mnt/foo
mount -o loop ./ramdisk.img /mnt/foo
cd /mnt/foo
tar xzf ~-/ram.tgz

Andreas Schreckenberg wrote:
>
> Tulika Pradhan wrote:
> >
> > hi !
>
> Hi,
>
> > i need a minimal ramdisk image for booting up linux on a embedded ppc board.
> > i tried monteVista site (as i saw a mail in the mailing list archive), but i
> > already have a development platform so, how can i download a ramdisk image
> > without downloading CDK. I use Red Hat linux v6.2 and ppc 603e processor.
> >
> > Any help would be great.
>
> I use the following script for a 4MB ramdisk:
> You must be "root" and have ramdisk support
>
> dd if=/dev/zero of=/dev/ram bs=1k count=4096
> mke2fs -vm0 /dev/ram 4096
> mkdir -p /mnt/ram
> mount /dev/ram /mnt/ram
> (cd file_system; cp -a * /mnt/ram)
> umount /mnt/ram
> rmdir /mnt/ram
> dd if=/dev/ram of=fs_images/ramdisk.image bs=1k count=4096
> gzip -v9f ramdisk.image
>
> First create a directory called "file_system"
> and copy the files you need into it.
>
> you create a initial console in file_system/dev with
> mknod c 5 1 file_system/dev
>
> and a shell in file_system/bin, file_system/etc, or file_system/sbin...
> (I use the static sash from MontaVista, rename it as init)
>
> hope you can use this
>
> bye
> Andreas
> --
>           Life's not fair. But the root password helps ! :-)
>                    http://schrecky.home.pages.de
>                Open minds. Open sources. Open future.
>

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